The peak voltage in the output of a half-wave rectifier is \(30 ~\text{V}.\) The RMS voltage of the output wave is: (assuming no distortion in wave) 
1. \(\dfrac{30}{\sqrt2}~\text{V}\) 2. \(15 ~\text{V}\)
3. \(\dfrac{15}{\sqrt2}~\text{V}\) 4. \(10 ~\text{V}\)
Subtopic:  Rectifier |
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In which of the following circuits is the current through the resistor \((R)\) always in the same direction (during both cycles), when \(\text{AC}\)-voltage is applied across \(A,B?\)
1. \(A\) 2. \(B\)
3. Both \(A\) & \(B\) 4. Neither \(A\) nor \(B\)
Subtopic:  Rectifier |
 55%
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The voltage applied across \(AB\) is a \(50~\text{Hz}\) – AC with a peak voltage of \(300~\text V.\) The diode \(D_1\) is ideal. The current \(i,\) flowing in the direction indicated, is:
    
1. AC with average zero
2. constant at \(3~\text A\)
3. unidirectional, but varying with time and peak value of \(3~\text A\)
4. unidirectional, but a positive peak of \(3~\text A\) and negative peak of \(1~\text A\)
Subtopic:  Rectifier |
 74%
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In the circuit shown in the figure (i), the (ideal) diode \(D_1\) has negligible resistance (in forward bias). The voltage \((V_A-V_B)=V_{AB}\) is time varying, as shown in the figure (ii):
   
The current through the resistance \(R=100~\Omega\) has a maximum positive value of:
1. \(0.05~\text A\)
2. \(0.1~\text A\)
3. \(0.025~\text A\)
4. \(500~\text A\)
Subtopic:  Rectifier |
 75%
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In the circuit shown in the figure (i), the (ideal) diode \(D_1\) has negligible resistance (in forward bias). The voltage \((V_A-V_B)=V_{AB}\) is time varying, as shown in the figure (ii):
  
The diode \(D_1\) conducts during:
1. \(PQ\) 2. \(QR\)
3. \(RS\) 4. \(SP'\)
Subtopic:  Rectifier |
 74%
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In the circuit shown in the figure (i), the (ideal) diode \(D_1\) has negligible resistance (in forward bias). The voltage \((V_A-V_B)=V_{AB}\) is time varying, as shown in the figure (ii):
  
The current \((i)\) through the resistance \(R=100~\Omega\) is:
1. positive during all phases
2. positive during phase \(PQ\)
3. positive during phase \(QR\)
4. positive during phase \(SP'\)
Subtopic:  Rectifier |
 76%
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